baber/WOPTO huggingface dataset:
Patent GB-1216142-A (GB)
Title: Recirculating ball slip joint assembly
IPC: F16D3/06
Filed: 1968-06-06
Abstract: 1,216,142. Spline couplings. NORTH AMERICAN ROCKWELL CORP. 6 June, 1968 [29 Sept., 1967], No. 27009/68. Heading F2U. In a circulating ball spline coupling the balls 48 engage rounded corner portions 24, 25 of the splines 20 of the inner shaft member 14, the outer sleeve member 26 being formed with pairs of parallel circular grooves 30, 32 subtending an angle greater than 180 degrees whereby the balls are retained in position if the inner member 14 is withdrawn. The ball tracks are closed by end caps 50, preferably of glass fibre reinforced nylon, held in place by sealing discs 60 and washers 64 secured by snap rings 68. The caps are formed with arcuate recesses 70 connecting the ends of the grooves 30, 32 and also shaped to prevent escape of the balls. Dowel pins 78 ensure correct angular location of the end caps 50.
Patent GB-268691-A (GB)
Title: Improved apparatus for electrically indicating or transmitting to a distance the angular settings of any device
IPC: G05D3/14
Filed: 1925-10-29
Abstract: 268,691. Watt, R. A. W. Oct. 29, 1925. Tell-tale apparatus; selective distant-control systems.-In a system for repeating the angular settings of a device such as a compass, clock, torque meter, level or pressure gauge, or a ship with respect to a leader cable, the receiving device comprises an ionic beam or a beam of equivalent character adapted to be deflected by a magnetic or electrostatic field. In the arrangement shown in Fig. 1, a coil T adapted to be rotated by the master instrument is excited by alternating or varying current. The coil T is coupled to two pairs of secondary coils X, Y which are connected to plate x, y adapted to produce an electrostatic field acting on the beam. The beam is oscillated in the direction of the resultant field and a line is produced on a fluorescent screen in a position corresponding to the position of the master instrument. The plates x, y may be replaced by coils which produce a resultant electromagnetic field and the master instrument may control the movable plates of a condenser or a resistance instead of the primary of a transformer. A number of repeater dials may be controlled by a single transmitter and two or more angular settings may be reproduced on a single repeater dial by the provision of two primary coils coupled to a common secondary system. The individual deflections may, as shown in Fig. 3, be distinguished by employing waves having different amplitudes adapted to produce different numbers of stationary points 2, 5. The wave forms may be highly asymmetric so that the resultant deflection may be mainly to one side of the undeflected position of the ionic beam. The indications may be transmitted by wireless, the currents in the secondary coils being used to modulate carrier waves of different frequencies. The indications may be recorded by photographic means or by means of selective apertures or electrodes as described in Specification 254,353, [Class 40 (v), Wireless signalling &c.], or by providing a group of radial wires through any one of which a circuit including recording apparatus may be closed by the beam. Other apparatus may be controlled by the beam in a similar manner. The secondary currents may be amplified by amplifiers A<1>, A<2> and may be modified to provide a correction in the indications. In navigational systems, the leader cable forms the primary of the transformer, the secondary coils being disposed on the vessel. Specifications 21299/07; and 22879/14, [Class 40 (v), Wireless signalling &c.], also are referred to.
Patent GB-1174302-A (GB)
Title: Dihydro-Pyrimidine Derivatives
IPC: C07D239/48
Filed: 1967-01-31
Abstract: 1,174,302. Antihypertensive &c. compositions. UPJOHN CO. 31 Jan., 1967 [21 Feb., 1966], No. 27224/69. Divided out of 1,174,301. Heading A5B. [Also in Division C2] Pharmaceutical compositions having antihypertensive, antiviral, antifertiliny, anti-inflammatory and central nervous system stimulant activity, for oral or parenteral administration, comprise a compound of formula: in which R, is C 1-8 alkyl, R 7  is hydrogen, C 1-8  alkyl, bromine or chlorine and n is 0, 1, 2 or 3, or an acid addition salt thereof, together with a carrier. The compositions may also contain other antihypertensives, diuretics, sympathetic blocking agents, ganglion-blocking agents, peripheral vasodilators, reserpinoids, tranquilizers, sedatives, muscle relaxants and anti-histamines; specific examples of such agent are given.
Patent GB-1500969-A (GB)
Title: Preparing natural tissues for implantation
IPC: A61F2/06
Filed: 1975-06-27
Abstract: 1500969 Treating tissues HANCOCK LABORATORIES INC 27 June 1975 [1 July 1974] 27242/75 Heading A2D A method of preparing natural tissues for implantation comprises fixing the tissues in a bath of preserving fluid and intermittently flexing the walls of the tissues during the fixing process. The flexing may be achieved by intermittently inflating the tissues with preserving fluid at a pressure lying within the physiologic range. The preserving fluid may be glutaraldehyde. The tissues may be a blood vessel or a heart valve. The method may be carried out in the apparatus shown in Fig. 2 which comprises a tank 22 and reservoir 26 both containing a preserving fluid. This fluid is fed to manifolds 31, to which are attached tissues in the form of valves 10, which are closed by cusps 20 (Fig. 1, not shown). Since the reservoir is elevated in respect of the valves, a static pressure bead is developed which exerts a pressure within the valves. By continually opening and closing valve 41, which is positioned in line 28, the pressure in the valves 10 may be lowered and raised. In Figs. 5 and 6 (not shown), thereon illustrated alternative forms of apparatus for treating tissues having physical forms different from that of the valves 10.
Patent GB-191491-A (GB)
Title: Improvements in brushes
IPC: A46B3/12
Filed: 1921-10-15
Abstract: 191,491. Hayward, E. W. Oct. 15, 1921. Grant of Patent refused. Bristles, fixing.-A brush comprise in combination a wooden handle 1 with a flat end, a brush element 2 consisting of bristles assembled to form a flat upper surface abutting against the end of the handle, and a parallelsided seamless ferrule 3 of rustless metal which secures the brush element to the handle with the aid of rustless pins or rivets passing through holes in the ferrule into the stock and transversely through the brush element. Specifications 4017/77 and 5582/10 are referred to.
Patent GB-461234-A (GB)
Title: Improvements in or relating to sound translating devices
IPC: H04R3/00
Filed: 1936-10-09
Abstract: 461,234. Microphones. ELECTRICAL RESEARCH PRODUCTS, Inc. Oct. 9, 1936, No. 27437. Convention date, July 30. [Class 40 (iv)] A velocity-type microphone and a pressuretype microphone are associated with a single amplifier, preferably in a single structure. In the apparatus shown, the velocity-type microphone 10 comprises a conductive ribbon diaphragm 34 supported between polepieces 31 fixed to the limbs of a U-shaped magnet 30, whilst the pressure-type microphone 11 is of condenser-type and is mounted on the cross-bar 36 of an H-shaped support 37 fixed to the magnet. The microphones are mounted in an apertured extension 44 of a casing 43 containing an amplifier 24, Fig. 2, transformer 13, resistances 19, 26, condenser 23, and switches 16, 21.. The microphones 10, 11 are connected respectively to the primary and secondary windings of the transformer 13 as shown, and the switches enable either to be used separately by shortcircuiting the secondary winding of the transformer or removing the polarizing voltage from the condenser microphone.
Patent GB-1049092-A (GB)
Title: Improvements in the control of liquid vapourisers
Inventor: METCALFE PETER
IPC: F17C7/04
Filed: 1963-07-11
Abstract: <PICT:1049092/C4-C5/1> A volatile liquid, such as propane or butane, is vaporized in a heated vessel 12 which is connected to a storage vessel 10 by a liquid-supply pipe 13, and by another connection 14, 16 joining the vapour-space of the tank to the vapour-space of the heated vessel, this vapour-connection having a constriction 15 associated with a pressure-differential responsive device 20 which controls the output of the heating means of the vessel 12. The apparatus ensures that the gas delivered through throttling-valve 22 is of substantially constant composition.  The vessel 12 is heated by a bundle of tubes supplied with steam through line 17, the steam-valve 19 being actuated by control-means 21 which are connected to device 20.  The upper part of vessel 12 is a disengagement column.
Patent GB-425181-A (GB)
Title: Improvements in the manufacture and production of paints, lacquers and varnishes
IPC: C09D127/24
Filed: 1933-10-05
Abstract: A paint, lacquer, or varnish contains a polymeric vinyl halide containing more halogen than corresponds with the formula (CH2= CH--halogen)n, a condensation product of a polycarboxylic acid, a polyhydric alcohol and a monocarboyxlic acid containing more than 6 carbon atoms or its ester, and a solvent.  The polymeric vinyl halides may be prepared by the method described in Specification 401,200, [Group IV].  Specified polycarboxylic acids are phthalic, isophthalic, terephthalic, tetrahydrophthalic, maleic and succinic acids, and specified polyhydric alcohols are glycol, glycerine and mannitol.  Suitable monocarboxylic acids are linoleic, ricinoleic, ricinenic, coconut fatty acid, soya-bean-oil fatty acid, linseed-oil fatty acid, colophony and wood-oil acid.  Softening-agents, pigments, dyes, and driers may be added.
Patent GB-850990-A (GB)
Title: Improvements in and relating to hydraulic fluids
Inventor: CHUBB LAURENCE WENSLEY
IPC: C10M169/04
Filed: 1958-08-27
Abstract: A hydraulic fluid comprises at least 20% by weight of a polyoxyalkylene liquid of molecular weight over 500, and either (1) at least 35% by weight of an ether of diethylene glycol and at least 5% by weight of a glycol, an alcohol or an ether of triethylene glycol, or (ii) at least 10% by weight of an ether of triethylene glycol.  Lists of suitable ingredients and proportions are given.  In examples compositions contain poly (oxypropylene-oxyethylene) glycol block copolymer of molecular weight of 4,000, diethylene glycol monoisopropyl ether, diethylene glycol monoethyl ether, diethylene glycol monosec-butyl ether, triethylene glycol monoisopropyl ether, triethylene glycol monosec-butyl ether, propylene glycol, ethylene glycol, dipropylene glycol, and methyl iso-butyl carbinol.
Patent GB-749479-A (GB)
Title: New polyamides
Inventor: COSTAIN WINSTON
IPC: B67C3/28
Filed: 1953-10-07
Abstract: Polyamides from normal mixtures of ingredients to which has been added a small proportion of a mixture of bis-hexamethylenetriamine or amide-forming derivative thereof with an equivalent quantity of dicarboxylic acid are particularly useful for shaping by extension or injection moulding.  The proportion of added triamine is preferably 0.3-3.18 molar per cent of total diamine and aminocarboxylic acid.  A mono-functional amide-forming reagent, e.g. acetic acid, may be included as described in Specification 495,790, the greater the amount added, the greater the proportion of triamine used.  A small proportion of delustrant or pigment, e.g. TiO2 may also be added at any stage of the process.  Examples describe the function of polyamides, e.g. from hexamethylene diammonium sebacate mixed with a small quantity of the neutral salt from bis-hexamethylenetriamine and adipic acid.  Extrusion tests on the products are described, the results (as well as the physical properties of films from the products) being compared with those obtained from normal polyamides.
Patent GB-230756-A (GB)
Title: Improvements relating to tunnel and travelling ovens for baking purposes
IPC: A21B1/48
Filed: 1924-11-18
Abstract: 230,756. Boer, H. P. den. Nov. 18, 1924. Bakers' ovens.-In a bakers' oven, of the kind in which the goods are carried through the oven on a travelling conveyer, the roof d of the baking chamber is formed with transverse downwardlyprojecting ribs e, perforated at f and arranged between gas burners g. The latter may be replaced by hot air or steam pipes or by electric heaters.
Patent GB-624169-A (GB)
Title: Improvements in machines for bending angle and other metal rods, bars or the like
IPC: B21D11/08
Filed: 1945-10-19
Abstract: 624,169. Curving; rolling. SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES DU SUD-EST. Oct. 19, 1945, No. 27604. Convention date, Nov. 21, 1944. [Class 83 (iv)] In machines for curving section-bars by thinning the flanges by inclined rollers, means is provided for varying the inclination of the rolls during the bending operation. For curving a Z bar, Fig. 13, a roller 3 has a generatrix inclined to a supporting roller 2. Rollers 2, 3 and a conical roller 4 are geared together and rotated by an electromotor to thin uniformly the flange and to thin progressively the web. Modifications are described for curving channel and angle sections. Rollers 2, 3, 4 are rotated from an electromotor 9 through gearing 8, Fig. 12. Angular adjustment of the roller 4 is allowed by mounting a shaft 19 and associated gears in a casing adjustable about a bevel drive 23 by a hand-wheel and screw mechanism.
Patent GB-159928-A (GB)
Title: An improved means for debanding shells
IPC: B21K21/06
Filed: 1919-11-08
Abstract: 159,928. Beakbane, C. F., and Arnot, J. W. Nov. 8, 1919. Projectiles.-Consists in a machine for debanding shells, in which the shells are placed in turn on a movable carrier and are clamped in position against a debanding tool adapted to be moved round the shell in a circular path. In the form shown, the shell 11 is placed on a V-shaped carrier 5 slidable along a track 4, and is clamped in the position shown, with its base centred in an adjustable ring 12, by a clamp 9. A chisel 24, pivoted eccentrically on a. spur wheel 13, driven through reduction gearing from a motor 14, is inserted in a cut made previously in the driving-band by means of a pneumatic chisel. One revolution of the wheel 13 then removes the band.
Patent GB-1299875-A (GB)
Title: Controlling advancement and rotation of a cylindrical body
Inventor: CARTER J WARNE
IPC: B29C53/60
Filed: 1969-11-03
Abstract: 1299875 Making pipes CIBA-GEIGY AG 3 Nov 1969 27693/72 Divided out of 1299873 Heading F2P Resilient annular members for feeding a cylindrical body, such as a fibre-reinforced pipe, while rotating it, are longitudinally spaced in pairs 540, 540<SP>1</SP>, 542, 542<SP>1</SP>, 544, 5441 and 546, 546<SP>1</SP> and drivingly connected by chains 520, 572 to a motor-driven shaft 266. Chain 520 rotates the entire chassis supporting members 540-546<SP>1</SP>, by means of a detachably mounted sprocket ring 524. A further sprocket ring 576, for chain 572 is internally toothed to mesh with pinions (578) on the input shafts of four reduction gears 580. Each of two sprockets 582, 584 on the output shaft of each reduction gear 580 has a chain 588, driving a sprocket ring 568 of each member 540-546<SP>1</SP>. The members are preferably pneumatic tyres which can be inflated to give the desired gripping pressure on pipe P.
Patent GB-1428501-A (GB)
Title: Copolymers and production of the same
IPC: C08L21/00
Filed: 1973-06-11
Abstract: 1428501 Elastomeric tetrapolymers SNAMPROGETTI SpA 11 June 1973 [21 June 1972] 27778/73 Heading C3P A vulcanizable copolymer comprises units of (a) ethylene, (b) an α-mono-olefin containing at least 3 carbon atoms, (c) at least one cyclic or acyclic compound containing at least two carbon-carbon double bonds, no two such bonds being conjugated, and (d) a compound of formula A-(CH 2 ) n -B where A is a cyclohexene residue, with or without a methylene bridge, B is a cyclodiene radical and n is 0-5. The copolymer may be prepared using a catalyst comprising a compound of a transition metal of Groups IV-VIII and a reducing aluminium compound, monomers (c) and (d) preferably being added in portions during the course of the reaction to maintain constant concentrations. It may be vulcanized by conventional methods or covulcanized with diene polymer or copolymer elastomers. In examples (b) is propylene, (c) is exo- and/or endo-dicyclopentadiene, cycloocta-1,5-diene, 2-ethylidene-5-norbornene, hexa-1,4-diene, 4-vinylcyclohexene, 6-methyl- 4,5,8,9-tetrahydroindene, or mixed dimerization and addition products of butadiene and cyclopentadiene, (d) is a compound of the specified formula wherein A is norbornenyl or cyclohex- 3-enyl, B is methyl- or dimethyl-cyclopentadienyl and n is 1 (various other suitable monomers being mentioned), and the catalyst comprises Et 2 AlCl and vanadium trisacetylacetonate.
Patent GB-527423-A (GB)
Title: Improvements in or relating to the hydration of vinyl acetylene
IPC: C07C45/26
Filed: 1938-09-24
Abstract: 527,423. Ketonic compounds. CONSORTIUM FUR ELEKTROCHEMISCHE INDUSTRIE GES. Sept. 24, 1938, No. 27881. Convention date, Feb. 4, 1938. [Class 2 (iii)] In the hydration of vinylacetylene using acid metal catalysts, particularly sulphuric acid and mercuric oxide, the reaction temperature is kept constant at the boiling point, so that heat is constantly removed by evaporation, while the removal of the reaction products, is prevented by reflux cooling, the concentration of the acid being kept below 10 per cent. by weight of the reaction liquor. If the reaction liquid is carefully neutralized and distilled under reduced pressure the chief product is butanol-1-one-3, with subordinate amounts of ##<SP>1</SP>-diketobutylether. If the reaction liquid is distilled while acid or alkaline butene-1-one-3 is obtained ; this may be isolated by azeotropic distillation with water, and extraction with a solvent immiscible with water, e.g. ether, methylene chloride or pentene. Examples are given. Specification 515,141 is referred to.
Patent GB-692190-A (GB)
Title: Improvements in or relating to plain bearings and the manufacture thereof
IPC: F16C33/14
Filed: 1949-11-01
Abstract: 692,190. Making bearings. GLACIER METAL CO., and BROWN, W. B. D. Sept. 1, 1950 [Nov. 1, 1949], No. 27964/49. Classes 83 (ii) and 83 (iv). [Also in Group XXXIV] A method for the manufacture of plain bearings comprises bonding strips of an aluminium bearing alloy and of copper or copper alloy by rolling together under pressure, the copper or copper alloy layer being initially soft and being hardened during the rolling operation or subsequently by heat treatment. The copper alloy backing may contain tin, zinc, nickel or iron to increase its sensitivity to work-hardening, or it may contain an element such as titanium or a combination such as nickel-tin-zinc to render the backing layer susceptible to hardening by heat treatment. The aluminium alloy may contain tin and/or lead. A coating of soft metal or alloy may be deposited to form the bearing surface.
Patent GB-647989-A (GB)
Title: Improvements in or relating to conveyors
IPC: B21H9/00
Filed: 1945-12-03
Abstract: 647,989. Endless conveyers. CRUCIBLE STEEL CO. OF AMERICA. Dec. 3, 1945, No. 28007/48. Convention date, Jan. 15, 1945. Divided out of 647,942. [Class 78 (i)] Articles are delivered to a machine by a conveyer having two portions moving in paths inclined to one another, the change of direction causing a gap to be formed between the articles into which gap a movable stop may enter temporarily to restrain movement of the articles. As shown, a furnace conveyer 36 discharges heated billets to an inclined ramp 38 from which they are delivered in lengthwise position to a conveyer 40 which undergoes a change of direction,in passing over a sprocket 68, so forming a gap 67 between adjacent articles. Into the gap 67 may fall a stop plate 71 mounted on a bell-crank lever 72 pivoted at 74, so that the stop plate temporarily arrests the billets travelling towards it; the stop plate is periodically removed from the gap by a pushrod 78 actuated by a cam driven in synchronism with a mill to which the conveyer 40 delivers. The lower edge 73 of the stop plate 72 is of inverted V-shape and the supporting surfaces of the conveyer 40 are V-shaped so that a billet of rectangular section will rest with two diagonally opposite edges in the same vertical plane.
Patent GB-799841-A (GB)
Title: Improved closure and/or holding device for bags of polyethylene and like film material
IPC: B65D63/14
Filed: 1956-09-13
Abstract: 799,841. Bag closing and carrying devices. MINNAAR, M. H. Sept. 13, 1956 [July 14, 1956], No. 28034/56. Class 133. A closing and carrying device for polythene and like bags comprises a disc 1 and hollow member 4, the disc being placed to one side of a bag wall and pressed into the member 4 carrying the bag material with it. The disc is retained in a groove 2. A string loop is passed through holes 5a to produce a handle 6a and neck closing element 6b. Two or more devices may be attached to one bag.
Patent GB-649751-A (GB)
Title: Improvements in and relating to automatic controllers for electric motors
IPC: H02P1/18
Filed: 1948-10-29
Abstract: 649,751. Compression resistances. BRITISH THOMSON-HOUSTON CO., Ltd., and PAYNE, K. J. Oct. 29, 1948, No. 28141. [Class 37] [Also in Group XXXVII] An electric motor X is started when a pushbutton S is actuated to energize a coil F1 of an electromagnetically-operated carbon pile regulator. The armature H rises to close contacts Q short-circuiting the push-button, and a spring P is compressed to move a dashpot member L and a bridge K which first completes the motorcircuit and then compresses the piles A. When the member K has moved a predetermined distance it trips a latch S and allows a spring T to close contact R, so connecting the motor directly to the line. A limit switch V is operated by the contact R to introduce an economy coil F2. The regulator is then held in its closed position by the combined action of coils F1, F2 and series coil G. The motor may be used to start an aircraft engine, so that, when the engine fires and the current in coil G falls, the regulator operates to disconnect the motor. The motor may also be stopped by means of a push-button. A protective time switch and an overload device may be provided.
Patent GB-246423-A (GB)
Title: Improvements relating to the manufacture of artificial silk or the like
IPC: C08K5/098
Filed: 1925-11-09
Abstract: 246,423. Hartogs, J. C. Nov. 9, 1925. Cellulose xanthates, and processes for making filaments therefrom.-A solution adapted for the spinning of artificial silk &c. consists of a potash viscose to which is added a potash soap, or a fatty acid adapted to yield such soap. Suitable additions are potassium oleate or oleic acid.
Patent GB-1389541-A (GB)
Title: Drying of timber
Inventor: PLESS J H
IPC: B27K3/02
Filed: 1971-06-16
Abstract: 1389541 Drying of timber J H PLESS 12 June 1972 [16 June 1971] 28271/71 Heading F4G  Lumber 1 is heated as it is continuously moved through a drying chamber 22, and the surface of the lumber 1 is moistened intermittently by contact with one or more freely rotatable wetting rollers 2 as the lumber 1 moves through the drying chamber 22. As shown, the roller 2 comprises a number of cylindrical sections 3 of spongy absorbent material, the shaft 4 being carried on bearings 5 on pairs of arms 9 linked by an apertured water pipe 6 and suspended from rollers 14. One of the arms 9 of each pair includes several bolt holes or a slot, and the angle between the arms 9 of each pair may be varied, so that the roller 2 exerts a slight pressure on the lumber 1. The water pipe 6 supplies water to the roller 2 under the control of a timer regulated by the temperature in the chamber 22, and is connected to a ram 12 which intermittently reciprocates the roller assembly across (or along) the lumber 1 under the control of a second timer. The periods of the timers may be varied to reduce the relative humidity as drying proceeds. The rollers may be wetted as they move over the lumber. The amount of water supplied to the rollers may be varied.